Lubricating mechanism for piston-machines.



G. D POGUE.

LUBBICATINGMECHANISM FOR PISTON MACHINES.

APPLlCATlON man FEB- 23, 19w.

1,230,513. Patented June 19, 1917.

2 SHEETS-SHEET 1. J d9,

G. D. POGUE.

LUBRICATING MECHANISM FOR PISTON MACHINES.

APPLICATION FILED FEB. 23. I917.

1,230,513. Patented June 19, 1917.

k 5 @lji Z r J J? Z 1? 4+ f bearing or part being lubricated.

enonen n-roeun, or six Lotus MISSOURI.

Lunnrdiirme nncnnnrsm ron PISTON-MACHINES.

Specification of Letters IPatent'. Patented une 19, 1917,

Application filedlebruary 23, 1917. Serial No. 150,481.

To all whom itmay concern: ,Be it known that I, Gnoncn D. Poses, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new 5 and useful Improvement in Lubricatin Mechanisms for Piston-Machines, of which the following is a full, clear, and exact do seription, such as will enable others skilled in the art to which it appertains to make and use the same. p I This invention relates to a lubricating mechanism for piston machines of-the type in which a part that moves with the piston cooperates with astetionary )art to force oil through a conduit that lee s to a piston 'pin bear ng'. 0.1-1 other hearing or part that re uires-lu icationr. j he main object'of my present invention is to. provide a lubricating mechanism of the 2o generalft .pe referred to, which is' so constructed t ettperfectilongitudinal alinement of the two-ooiiperating parts ofthe mech-. anism isnot essential to'insure successful op- .-,-;.eration e; mechanism. To this end I mhave del d e"l\1lii'icatii 1g mechanism that "-compris'essan'bil pump car'riedby. a station ary par oithe machine and e devicethat lifot es5tvitl1;thepiston of the machine aetuatesi the plunger of saidpump for a small part of tlie strolr'e'ofthe piston. 1 Another object is toprovide a lubricating mechanism ofcthe kind just described, in which-the plunger of the pump remains at all times-in .thecylinder of the ump, the mechenislmbein so constructed t at ample time is provide at each cycle of. operations of the" machine-for the oil to flow from the 'source of'supplyj into-the cylinder of the pumpuild thus be ir 'readiness'to be forced into the oil conduit at the next; cycle of operati Y otherlobjec'tlis to. provide a. lubrioatlng mechanism of the character described that'is- 'onally strong and rugged and 'prov'id d-"withxen eesi y iidjusteble means for "eccii'rately regulating the discharge of oil "'f-Iomfihepu mp. i Another 0 4 j is to provide a lubricating I .fineclianism og the genereltype referred to that providedwith a novel means for pre- "j'yenting-backflow of oilj through the oil f 'nduitjthatfleads from the pump to the 'Anotherobject 1S to provide a lubricating mechanism for machines thatcom rises an oil] conduit formed by two no'rma 1y separated tubular members that are connected together by a. butt joint when they are brought into engagement with each other, and means for forclng oil through said conduit when the abutting ends ofthe two parts air which becomes trapped with the oil flowing through. the conduit ieeding from the pump can escape before it reaches the bearing or part being lubricated. Other objects and desirable-features of my invention will be hereinafter pointed out. i

Figure 1 of thedrawings is a vertical sectional view of a portion of a pistonmechine equipped with a lubricating mechanism constructed in accordance with my present invention.

Fig. 2 is a. vertionl sectional view taken on the line 27-2 of Fig Fig. 3 is a horizonte on the line 33 of Fig. 1.

Figs. 4, 5 and 6 are horizontal sectional views of the. oil conduit, taken on either of the lines H of Fig. 2, illustrating various capillary devices that can be used-1n the oil conduit to prevent back flow; and,

Fig. 7 isa' detail view, illustreting an or dinary ball check valvethat can be used. in

place ofa capillary device to prevent back flow through the oil conduit.

Referringto thedrawings, which il1i1's-' trate the preferred form of my invention, A designates theoylinder of an engine or ma} chine, B designates the piston that is :re: ciprocatingl mounted in said c linder, (J designates t e crank on the cran the machine, and D designates the connecting rod that connects said ,OI'ttlflC and piston together. In the machine herein shown the piston and connecting. rodare connected to-' gether by a. piston pin E mounted freely. in

a. bearing F on the connecting roda'nd having its end portions keyedor connected in any other suitable manner to lugs 1 on the interior of the-piston,-and the connecting rod D is provided on its lower end with a 1. sectional view, taken shaft of 511 ii! parts.

hearing (1 that surrounds 1111- 1-111111; pin 11 on the crank (l.

(11111 feature 111 111 \"p.1'1 s1 |11 invention 1-1111- sists in a lubrivating 1111-1-l11111is111 provided with 1111 oil 1-.1111'1111it 1'111'1111 11 |1 1\\'11 nor- 11111111' 51 .1.)arate11 ,seelions or t11l111l11r-sl111p1-11 parts whose 11111111 1 111 1 11111: are so shaped that they 1111 111 a buttjoiut when said x1 1 tions are brought 11 31 1111 1. 111111 1111 11115 for forcing oil through $11111 1 1111111111 11'111 1'1 the two parts of 5111111 1111 11111111 11 111;;1 1111 1'. It is iinlnaterial. so l ar 1151111 111111111 1111 11 is 1 1111- 1-erne11, how the oil is 11111 1 11 through $11111 111111111111. 111111 it is 111 411 i11111|111eri11l how 1111 two 51 111'1111111'111 1111 1 1111111111 11 re 11111111111 11 111111 111 1111111 11. 111 111: to separate 1111 111 111111 living 1111 111 tog11tl11 r. :1 gasket'or resilient 1 11 1111 111 111111 is interposed between 1111 two 1111111111111 1 1111. '11'1' the. seetions 111 (11 -1111 1-111111uitwhen said sections are brought together. invention l11 r1 inal1ow11 the oil 1 1111111111 111love referred to eomprises 11 1111111111rs1111pe1l 111 viee .1 that moves with 1111 piston 13 111111 11 tubular shape11 1111 111111 1'1'11111 Forms 1111 plunger 111' 11 stationary. pump 1 whieh 1-111.- ri1 1l by 11 hraeket 2 or other stationary part- 11111111 111111111111 the lower 1 1111 01 511111 device 11 111111 1111 upper 1 1111 111' the pump plunger being so 1111 1111 11 thatwhen they 111 11 brought. 111111 1111 1- 11 1111111. joint will 111 1111 1111 11 between '111'1 11111111 1 111111 111 vi1 1 J are 111 arranged thatsahl 1l1 vi1'1 .1 will engage. 111 plunger 1' the pump .1 for 11 small part 111' 11111 11111111 111' said piston, thereby causing oil to 111 fol-1 .1 11 from the 1 vli11111 r 111' the pump 111111 11. 1-11n1l11it that 1111-1115 1111 extenion 111' 'the 111 \1111 .1 111111 whieh leads eitherdireetly to the hearing or part being lubrieated or to 1 11 1111 llhtl'YOll' 3. as shown in Fig. 1, that is 11111111111 11 1111 111111111 the lugs 1 111' the piston, the oil that supplied to the oil. reservoir 3 111 i11; subsequently delivered to the piston p111 111 a ring F'through oil distributing duets 51" formed i 11 the lug 1 that carries said oil reservoir and in the piston pin 1 1,115 shown in Fig. 1. 1f desired, a. Silnih'nr lneohanisn't can be. proh-ided for lubricating the 111'111111 pin bearing (11, the oil reservoir 3 of the crank pin hearing 111111- 1 11ti11g'11 1eol1a11isnt 111 1111 111ou-nte1l on the conneethtg rod 1). as shown in Figs. 1111111 3 and so fol-1111111 that-the oil conduit K will always remain in 11p1 1rative: position with relation to same when the machine is in op eration. v i

The. oil purnp previously referred to 1111111- prises aey1i111 11 r1. a tubular-511aped plunger 5 that is reoiproeatingly mounted in said cylinder 1 111111 provided at its lower end with 11 1 111 1111 valve :71". 11 spring 13 that moves the plunger 11'up\\:11r1l1 v-. and an adjustable 1 1111111 111 7 that governs the stroke of the plunger F1. The spring ('1 is preferably in" 1111L1 11 in 1111 1-vli11 1l1 r 4 111 1111 1 11 the bottom 111 the 1111111 111 111 ofsaid ovlinde' 111111 1111 lower 1 1111 of the plunger 5. 111111 the oil suppl\ '1 pe S through whirh the oil is supplied said e vlinder 1 is1-o11111 1-11 11 to the 111111 1 1 1111 111 $11111 and is provided with 11 1 111 111 valve 5 or other suitable 111 \i1'1 v that prevents 11111 11 tlow through 1 11111 oil supply pipe .ti'during the displacement stroke 111' the pump plunger. If desired. the pipe h .1111 1 11 prov ile1l with a valve 5 for regulating the How of oil through same.

'1111 tubular-51111111 11 device. that 111 pr1 ss1 1111 plunger of 1111 pump is preteral1l 11111111111 111111thepiston 111115111 1111 1111111- 111 1'1'11111 1111 opening or pasageway running through 1111 1 1 1111 1 111' said device will 111 in substantially \'1 1'li1'11l alinelnent with the 1 1111 1' bore of 1111 pump plunger 1'1. ln'the 1111 111 111" my invention 11'1 1'1 11151'11111'11 the devi1-1 '.l is 1-1 1r1'i1 1;1 11v 1111 air chamber 11 111'- rang'ed 1111 the inside of the piston B adja- 111 111' 1111 lower end of same. which air 1111111- 111 1' is connected 11 means of the oil eonduit 1i with the oil 1'1 1 1'Voir 3. previouslv d seribed. It is not essential. l1ow1 v1 1'. tl1at 11111 deviee J 111 11111111111 11 in this exact 1111111- 11111 but it is essential that it be provided with 11 1-1 ut1 r 11111 1 or passageway that 1. 11111- nuulieates with the oil 1. .11111luit K. So that the. oil which is forced upwardly into said He- 1 111 J l.1 '-th downward 111o'v1 111ent of the plunger of 1 1111 pump I will enterthe oil 1 1111111111. I prefer, however. to equip the 1111 1 11111119111 with an air 01111111111 1 L.'11s such an air 1 1111111111 1 causes the intermittent 0r pulsating fidw of the oil through the. device 11 to be eoni'erted into a substantially .con-

tinuous flow through the conduit 'K by the pressure in 11111 ehaniber L. If desired. the plunger 5 of the pump 1 1111.111: provided with 1111 auto111ati11allw- 0111 11111111: relief valve 10 that governsa 11111 1 111 discharge port 10 leading from the .center bore of the pump plunge-r. so as to reliev1 the pressure in the.

passageway through whieh the oil flows from the 11111111111 1 111 the pump. in ease of 11 flow of the toil. through said 1-111ss11geway.

t1 111porarv stop 'mge 111' din'1inutio'n in the 11111 for instance-1 to low telnperature. The.

"oil that enters the tubular-shaped device J' 1111 the. pie 111 11 1; and theoil conduit K that eonnnuniegtes with said devioe. is prevented-fron'1 flowing backwardly through the oil passagewav formed by said elements, eitherhy moans of1acapillary device 11 arranged ger. I pl'e. er t use 11"-. 1 .11.11i'1 la1 y device 11 to prevent 111111111 11011 of the oil through the.

, otl passageway leading from the pump to 120 v 111 the dev 111 as shown in Fig. I, or a balljf' the bearing or part being lubricated, on

count of the fact that a capillary device is.

oil through the oil conduit is, that capil' lary device can be arranged throughout the entire length of the oil passageway, thereby causing the oil. column to be sustained throughout its entire height. instead of at one point, by a single member at the lower end of the passageway, simh, for example, as a check valve. It is imn'iatcrial what type of capillary device is used for this purpose, so long as said device is constructed in such a manner that sufficient small openings or spaces are provided in same to permit the oil to pass in one direction through said device but not return or fiOWll] the opposite direction through said device. Figs. 4, 5 and 6 of the drawings illustrate various forms of capillary devices 11 that may be used. for the purpose mentioned. the one shown in Fig. 4: comprising a tub ar center portion from which a. plurality of ribs or veins radiate, the one shown in Fig. 5 being formed from av sheet of sui table metal that coiled into a roll, and the one shown in Fig. 6 consisting of a bundle of wires ar ranged in the oil passageway. Still another form of capillary device that may be used is one formed by a number of relatively small tubes mrrangcd in multiple.

The plunger 5 of the pump I is provided at its upper end with a. head piece 5? whose dimncter is considerably greater than the portion of the plunger that fits in the cylinder of the pump. so that slight inaccuracies in, the longitudinal aliuement ofthe pump plunger and the actuating device J on the piston will notinterterc with the sue-- cessful operation of the mechanism. The head 5 of thepump plunger is preferably provided with a removable wear piece 12, preferhbly made or resilient material. against wh1chthe lower endoi the device J strikes,

which wear piece is clamped in operative position by means of a clampnig' device 13 on the head of the. plunger that also serves as a collector for any oi ltthat escapes from the o nt between the lower end of tlIQdBVICO 5 and the gasltetli, the oil that collects in the device 13 flowing back into the hollow plunger 5 of the. pump. The adjustable ele ment 'i, previously referred to, that governs the stroke of the plunger, preferably consistsof a slcevedike or tubular-shaped member screwed onto an externally screwthreaded portionlalon the cylinder l: of the pump and provided at its upper end with a flange or rim 7 that serves as a stop or abut- Jnent Whichcooperates with the head on the pump plunger, or rather the clamping device 13 on said head to limit the upward stroke of the pump plunger. By turning the element 7 in one direction or the other the height of the flange or rim 7 thereon can varied, thereby enabling the supply of o l from the pump to be accurately controlled. Any suitable means can be used for retaining the element 7in adjusted position, the means herein shown for this urpose consisting of a plurality of springpressed pins 115 in said element'that cooperate with notches 16 formed in the top side of a flange 17 on the pump body.

When the machine is in operation the device J on the piston B of the machine ongages the head on the plunger of the pump I at each cycle of operations of the machine and forces said plunger downwardly into the cylinder of the pump, thereby causing the oil in said pump cylinder to be forced upwardly through the center bore in the plunger and in the device J, into the oil' conduit K. The pump I is so arranged with relation to the actuatin device Jon the piston of the machine tfiatthe plunger of. the pump is actuated for only a small part of the stroke 013 thepiston, thereby providing ample. time for the oily from the source of supply to enter the cylinder of the pump at each cycle of operations of the machine. The plunger of the pump remains at all times in the cylinder of the pump, and as the actuatingdevice J on the piston merely strikes against the end of the pump plunger,

instead of entering an opening orsocket in said plunger, a slight inaccuracy in the longitudinal alinement of said parts will have no effect on the successful operation of the mechanism, or cause any parts of same to be broken or bent out of shape. The quantity of oil that is supplied to the oil. conduit K at each cycle of operations of the machine can be accurately controlled by the Valve 8 in the supply line 8 or by simply adjusting the element? upwardly or downwardly, so as to vary the stroke of the plunger of the oil pump. I prefer to equip the mechanisn'r with an oil reservoir 3 into which the oil is fed by the pump I and from which the oil flowsto' the bearing or'part being lubri cated, as such a reservoir perm1ts any air that has become trapped with the .oil that flows through the conduit Ktoesce e from I said conduit before the oilreaches t e been ing being. lubricated. This oil reservoir 3 is not essential, however, to the successful operation of my improved lubricating mech anlsm.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is: 1. In a machine of scribed, a'reciprocating pist0n,'an oil pump mounted on a stationary part of the machine and comprising a cylinder and a tubular plunger reciprocatiugly mounted in said cylinder,- a device carried by the piston of the machine that engages said pump plunger and forces the oil in the cylinder of the pump through the bore in said plunger, and an oil conduit that communicates with the bore'in said plunger and through which the oil is conducted to the part being lubricated.

In a machine of the character described, a reciprocating, piston, 'an oil pump ar anged stationary with respect to the movement, of said piston and provided with a tubular plunger, a substantially tubularshaped device carried by said piston and arranged in such a manner that it 'will engage and actuate said pump plunger and cause oil to be forced through said plunger and through said actuating device, and an oilpassageway that communicates with said actuating device. v

3. In a machine of .the character described, a. reciprocating piston, in oil pump carried by a stationary part of the machine, a device carried by the piston that is adapted to engage and actuate the plunger of said pump, an oil passageway through which oil isforcedby said pump, and an air chamber that communicates with the interior of saidoil passageway." i

L'In a machine' of the character described, a reciprocating 'piston, an oil pump carried by a stationary part of the machine and provided with a plunger that has a passageway in same through which the oil in the cylinder of the ump is forced during the displacement stroke of the pump plunger, means carried by the piston of the machinev for actuating said pump plunger, and an oil conduit or duct carried by. the piston and arranged so that the oil displaced by the plungerof the pump will flow through same.

5. In a machine of the character described, a reciprocating piston, a stationary oil pump provided with a substantially tubular-shaped plunger through which oil is forced on the displacement stroke of the pump plunger, and an oil passageway carried by the piston and comprising a substantially tubular-shaped member that engages the plunger of the pump am actuates same when said piston moves in one direction. v

6. In a machine of the character described, a reciprocating piston, an oil pump carried by a stationary part of the machine and provided with a plunger that has a passageway insame into which oil is forced from the cylinder of the pump on the-displacement stroke, the plunger, a tubular-shaped actua nig device on the piston that is adapted to engage and move said pump plunger, an air chamber that couununicates with the interior of said tubularshaped device, and an oil conduit leading from Said air chamber.

In a machine of the character debed, a reciprocating l-ii's't'on, an oil pump carried by a stationary part of thenuu-himand provided with a substantially tuhularshaped plunger, a substantially tubular shaped device on the piston whose end engages said pump plunger and moves it during part of the stroke of said piston in one direction, an oil conduit on the piston that comnumicales with said actuating device. and an adjustable abutment for limiting the movement of said pump plunger on its re turn stroke. 7

In a machine of the character (loscribed, areciprocating piston. an oil pump carried by a stationary part of the i'nachine comprising a substantially tllbllltlP-Silttlitll plunger which is provided at one end with a head piece, and an oil passageway on the piston comprising a sul'istantially'tubulae shaped member whose end strikes against the head on said pump plunger and moves said plunger during part of he stroke ol the piston in one direction. I

i 9. In a machine of the character de scribed, a reciprocating piston, an oil pum gr, carried Ry a stationary pa rt ofthe machine comprising a substantially tulmlar-slunied plunger which is provided at one end with a head piece, an oil passageway on the. piston comprising asubstantially tulmlar-shapwl 190 member whose end strikes against the head piece on said pump plunger and moves said plunger during part of the stroke of the piston in one direction, and an adjustable element that serves as a stop against which the head pieceon said pump plunger strikes 1 on the return stroke of said plunger.

, 10. In a machine of the character described, a reciprocating piston, a stationary oil pump provided with a substantially no tubular-shaped plunger which has a. head at one end of same, a removable wear piece on said head, and a device carried by the. piston of the machine that strikes'against said wear piece and moves said plunger when said piston moves in one direction.

11. In a machine of the character described, a reciprocating piston, an oil. pump carried by a stationary part of the machine and provided with a. reciprocating plunger that has an 'oil passageway therein into which oil is forced from the cylinder of the pump during the displacement stroke ol" the plunger, an uljustablo member on said pump provided with a portion thatq serves as a stop or abutment which limits the movement 'of the pump plunger in one direction, a

- scribed, a

conduit.

- bringing said parts moving said plunger during a portion of the stroke of the iston in one direction.

12. In a machine of the character dereciprocating piston, an oil pump carried by a stationary part of the machine and provided with a plunger that has a passageway in same through which oil is orced on ,the displacement stroke of the plunger,,an oil passageway on the piston comprising a member that engages said plunger and actuates it. during part of the stroke of the piston in one direction, and means for preventing back flow through said oil passageway.

13. In a machine of the character described, a reciprocating piston, an oil conduit that travels with said piston, means for forcing oil through said conduit when the machine is in operation, vice for preventing back flow through said 14. In a machine of the character described, a reciprocating piston, an oil pump mounted on a stationary part of the machine, a tubular-shaped device carried by the piston that actuates said pump during a portion of the stroke of the piston in one direction and causes oil to be forced upwardly through said device, and a capillary means arranged in said device for preventing back flow of the oil through same. 15. A lubricating mechanism for machines provided with an oil conduit thatcom rises two normally separated parts or sec ions constructed in such a manner that a butt joint will be formed between said parts when they are brought together, means for together and separating them, and means for forcing oil through said conduit when the parts of same are together.

16. A lubricating mechanism for machines provided with an two normally separated parts or sections constructed in such a manner that a butt joint will be formed between said parts when they are brought together, means for substantially tubular-shaped and a capillarydeoil conduit that comprises bringing said parts together and separating them, means or forcing oil through said conduit when theparts o s and a resilient element. arranged so that it will lie between the abutting ends of the two sections of said conduit.

17 A lubricating mechanism for machines provided with an oil'conduitthat comprises two normally separated parts or sections constructed in such a manner that a butt joint will be formed between said parts when they are brought together, means for bringing said arts together andseparatin' them, means or forcing oil .through sai conduit when the artso same are together, and means for'col acting and saving any oil that escapes through the butt joint between the two sections of the oil conduit.

ame are together,

1.8. In a lubricating mechanism of the shaped member that forms part of a conduit throughwhich oil is tubular-shaped member arranged so-that the end of said moving member will butt against same and form a butt joint between said members, and means for forcing oil through said memberswhen they are in engagement with each other.

19. In a lubricating mechanism of the character described, two tubular-shaped members that are normall for separating said mem ers and bringing them together, a resilient element that lies between the abuttin ends of said members when they are broug t together, and means forced, a cooperating.

separated, means for collecting any oil that escapes through A the joint between said members.

20. In a lubricating mechanism of the character described, two normally separated, tubular-shaped members that are adapted to be butted together so as to form part of an oil conduit, means for forcing oil through said members when they are together, and me us for preventing back fiow through said members.

GEORGE 1). POGUE. 

